CRYPTOGAMIA ALG.E. 227 



mous, the branches expanding into oblong mostly forked frondlets, 

 proliferous from their marginal extremity; capsules spherical, 

 sessile at the apices of the frondlets." Bot. Gall. ii. 942. Fucus 

 Brodiceij Eng. Bot. t. 1966. Sphcerococcus Brodicei^ HOOK. Scot. ii. 

 103. Chondrus Brodicei, GREV. Alg. Brit. 133. 



Hab. Amongst sea refuse, rare. Winter. I/. 



2. H. membranifolia, " stem cylindrical, filiform, branched, the 

 branches expanding into many-cleft wedge-shaped frondlets ; cap- 

 sules ovate, shortly pedicellate and arising from the stem ;" about 



3 inches high, red, thin and semitransparent Bot. Gall, ii, 943. 



Fucus membranifoliuS) Eng. Bot. t. 1965. Sphcerococcus membrani- 

 folius, HOOK. Scot. ii. 102. Chondrus membranifolius, GREV. Alg. 

 Brit. 131. 



Hab. Amongst refuse of the sea. I/. 



3. H. rubensj " stem very short, expanding into a linear wedge- 

 shaped frond, obscurely ribbed, and repeatedly branched with 

 proliferous shoots resembling the primary frond ; fructification 

 hemispherical, sessile, very rugose capsules, on the disk of the 

 frond." .Bot. Gall. ii. 943. Fucus prolifer, LIGHTF. Scot. 949. t. 30. 

 Sphcerococcus rubens, HOOK. Scot. ii. 102. Phyllophora rubens, 

 GREV. Alg. Brit. 135. 



Hab. On the sides of pools in the rocks, rare. At the 

 Coves. 



About 5 inches long, and rather more than a quarter of an 

 inch broad. The authors of the Description of British 

 Fuci, in the 3d vol. of the Linn. Trans, p. 166., suggest 

 that the remarkable proliferous tendency of this plant may 

 be not its natural mode of growth, but the effect of some 

 injury. The opinion is very improbable, seeing that the 

 plant is invariably proliferous; and with us it grows in 

 places much sheltered, and as far removed from violence 

 as it well can be. 



4. H. edulis, stalk very short, expanded into an obovate thick- 

 ish frond, rounded at the summit, simple or cleft by the waves, 

 purplish red. SPRENG. Syst. Veg. iv. 333. Bot. Gall. ii. 944. 

 HOOK. Scot. ii. 107- Fucus edulis y WITH. iv. 110. NEILL in 

 JEdin. Encycl. x. 22. Ulva edulis, GIIEV. FL Edin. 298. Iridaa 

 edulis, GREV. Alg. Brit. 1 58. 



